file has lookup method to transform all dependencies of file

HISTORY.md

@@ -6,6 +6,7 @@
 
 - move extraDeps to transport
 - lookupPackage
+- file has lookup method to transform all dependencies of file
 
 ## 0.7.3
 

lib/file.js

@@ -0,0 +1,41 @@
+'use strict';
+
+var path = require('path');
+var join = path.join;
+var dirname = path.dirname;
+var isRelative = require('./util').isRelative;
+
+module.exports = File;
+
+function File(filepath, pkg) {
+  this.filepath = filepath;
+  this.pkg = pkg;
+}
+
+File.prototype.lookup = function(cb) {
+  var deps = [];
+  var fileDeps = this.dependencies;
+  var pkg = this.pkg;
+  var filepath = this.filepath;
+
+  fileDeps.forEach(function(file) {
+    if (isRelative(file)) {
+      file = resolvePath(file, filepath);
+      deps.push(cb(file, pkg, true));
+    } else {
+      var pkg_ = pkg.dependencies[file];
+      deps.push(cb(pkg_.main, pkg_));
+
+      file = pkg_.files[pkg_.main];
+      deps = deps.concat(file.lookup(cb));
+    }
+  });
+
+  return deps.filter(function(item, index, arr) {
+    return item !== false && index === arr.indexOf(item);
+  });
+};
+
+function resolvePath(relative, base) {
+  return join(dirname(base), relative);
+}

lib/package.js

@@ -13,6 +13,7 @@ var Class = require('arale').Class;
 var Events = require('arale').Events;
 var debug = require('debug')('father:package');
 var util = require('./util');
+var File = require('./file');
 
 var defaults = {
   // another entry point for parse
@@ -168,7 +169,7 @@ var Package = Class.create({
         // dependencies exist if file has been parsed,
         return files[src].dependencies;
       } else {
-        files[src] = {};
+        files[src] = new File(src, that);
       }
 
       // file dependencies

test/spm.js

@@ -214,6 +214,53 @@ describe('Father.SpmPackage', function() {
     pkg.files['index.js'].dependencies.should.eql(['b', './a.js']);
   });
 
+  it('lookup files', function() {
+    var pkg = getPackage('normal');
+
+    // all deps
+    var ret1 = pkg.files['a.js'].lookup(function(filepath, pkg) {
+      return [pkg.name, pkg.version, filepath].join('/');
+    });
+    ret1.should.eql([
+      'b/1.1.0/src/b.js',
+      'c/1.1.1/index.js',
+      'd/0.1.0/index.js',
+      'b/1.1.0/src/b.tpl',
+      'a/1.0.0/b.js',
+      'd/0.1.1/index.js',
+      'a/1.0.0/a.json',
+      'a/1.0.0/a.handlebars'
+    ]);
+
+    // relative deps
+    var ret2 = pkg.files['a.js'].lookup(function(filepath, pkg_) {
+      return pkg.name === pkg_.name ?
+        [pkg_.name, pkg_.version, filepath].join('/') :
+        [pkg_.name, pkg_.version, pkg_.main].join('/');
+    });
+    ret2.should.eql([
+      'b/1.1.0/src/b.js',
+      'c/1.1.1/index.js',
+      'd/0.1.0/index.js',
+      'a/1.0.0/b.js',
+      'd/0.1.1/index.js',
+      'a/1.0.0/a.json',
+      'a/1.0.0/a.handlebars'
+    ]);
+
+    // isRelative
+    var ret3 = pkg.files['a.js'].lookup(function(filepath, pkg, isRelative) {
+      if (isRelative) return false;
+      return [pkg.name, pkg.version, filepath].join('/');
+    });
+    ret3.should.eql([
+      'b/1.1.0/src/b.js',
+      'c/1.1.1/index.js',
+      'd/0.1.0/index.js',
+      'd/0.1.1/index.js'
+    ]);
+  });
+
   describe('error', function() {
 
     it('not found ./b', function() {